Valve Springs And Valves - Yamaha Libero Workshop Manual

L-90
INSPECTION AND REPAIR :

VALVE SPRINGS AND VALVES

VALVE SPRINGS AND VALVES
1. Measure :
• Valve Spring free length ç
Out of specification Ÿ Replace.
2. Measure :
• Spring tilt ç
Out of specification Ÿ Replace
3. Check
• Spring contact face
Wear/pitting/scratches Ÿ Replace
4. Measure :
• Valve guide inside diameter
5. Measure :
Valve stem diameter
4-18
ENG
Valve spring free length :
39.62 mm
<Limit 38.17 mm>
Spring Tilt Limit :
1.7 mm
Valve guide inside diameter :
Intake :
5.000 ~ 5.012 mm
<Limit : 5.042mm>
Exhaust :
5.000 ~ 5.012 mm
<Limit : 5.042mm>